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Chemistry - p Block Elements (Group 15, 16, 17 & 18)

Practise 192 JEE Main previous year questions on p Block Elements (Group 15, 16, 17 & 18), compiled from papers spanning 2002 to 2026. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty JEE Main tests.

p Block Elements (Group 15, 16, 17 & 18) has been asked in 24 of the 25 years of JEE Main papers analysed (2002–2026), with 192 questions in all. 32% of them were easy, 55% moderate and 13% tough. Most of its questions came from 2022, with 30 questions that year. In the last three years (2024–2026) it had 25 questions across 49 papers, about 0.5 per paper.

The chapter's 6 topics are not weighted equally: Nitrogen and Its Compounds (55 questions, 29%), Halogens and Its Compounds (45 questions, 23%), and Phosphorus and Its Compounds (33 questions, 17%) have been asked the most. Nitrogen and Its Compounds has also led over the last five years, with 36 questions. Halogens and Its Compounds has produced the most tough questions (6).

  1. 1Find the correct statements related to group 15 hydrides. A. Reducing nature increases from NH to BiH B. Tendency to donate lone pair of ele08 Apr, 2026 (E)Nitrogen and Its Compounds
  2. 2Treatment of a gas ' ' with a freshly prepared ferrous sulphate solution gives a compound ' ' as a brown ring. The compounds and are.06 Apr, 2026 (E)Nitrogen and Its Compounds
  3. 3Correct statements from the following are: A. Nitrogen in oxidation states from to disproportionates in acid medium. B. Nitrogen has the abi05 Apr, 2026 (M)Nitrogen and Its Compounds
  4. 4Given below are two statements: Statement I: The covalency of oxygen is generally two but it can exceed upto four. The oxidation state of ox04 Apr, 2026 (M)Oxygen and Its Compounds
  5. 5Given below are two statements : Statement (I) : Oxidising power of halogens decreases in the order , which is the basis of "Layer test". St02 Apr, 2026 (M)Halogens and Its Compounds
  6. 6Regarding the hydrides of group 15 elements , select the correct statement from the following: A. The stability of hydrides decreases down t28 Jan, 2026 (M)Nitrogen and Its Compounds
  7. 7Given below are two statements : Statement I : The increasing order of boiling point of hydrogen halides is {HCl} In the light of the above 28 Jan, 2026 (E)Halogens and Its Compounds
  8. 8A ' p '-block element and hydrogen form a binary cation , while on treatment with in alkaline medium gives a precipitate of basic mercury(II22 Jan, 2026 (M)Nitrogen and Its Compounds
  9. 9Given below are two statements : Statement I: is more acidic than . Statement II : has higher bond enthalpy for dissociation than . In the l08 Apr, 2025 (E)Sulphur and Its Compounds
  10. 10Given below are two statements : Statement I : Nitrogen forms oxides with +1 to +5 oxidation states due to the formation of bond with oxygen04 Apr, 2025 (M)Nitrogen and Its Compounds
  11. 11Given below are two statements Statement I : The N-N single bond is weaker and longer than that of single bond Statement II : Compounds of g03 Apr, 2025 (M)Nitrogen and Its Compounds
  12. 12The nature of oxide and hydride formed by Te , respectively are :02 Apr, 2025 (E)Sulphur and Its Compounds
  13. 13A group 15 element forms bond with transition metals. It also forms hydride, which is a strongest base among the hydrides of other group mem28 Jan, 2025 (E)Nitrogen and Its Compounds
  14. 14The large difference between the melting and boiling points of oxygen and sulphur may be explained on the basis of24 Jan, 2025 (M)Oxygen and Its Compounds
  15. 15The incorrect statement among the following is options .23 Jan, 2025 (M)Nitrogen and Its Compounds
  16. 16Which of the following electrolyte can be used to obtain by the process of electrolysis?22 Jan, 2025 (M)Sulphur and Its Compounds
  17. 17The maximum covalency of a non-metallic group 15 element ' E ' with weakest bond is :22 Jan, 2025 (E)Phosphorus and Its Compounds
  18. 18Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : Both rhombic and 09 Apr, 2024 (M)Oxygen and Its Compounds
  19. 19On reaction of Lead Sulphide with dilute nitric acid which of the following is not formed?09 Apr, 2024 (M)Nitrogen and Its Compounds
  20. 20Number of oxygen atoms present in chemical formula of fuming sulphuric acid is ______.09 Apr, 2024 (E)Sulphur and Its Compounds
  21. 21Identify the incorrect statements about group 15 elements : (A) Dinitrogen is a diatomic gas which acts like an inert gas at room temperatur08 Apr, 2024 (E)Nitrogen and Its Compounds
  22. 22Among the following oxide of p - block elements, Cl 2 O 7 , CO , PbO 2 , N 2 O , NO , Al 2 O 3 , SiO 2 , N 2 O 5 , SnO 201 Feb, 2024 (M)Nitrogen and Its Compounds
  23. 23The strongest reducing agent amont the following is:01 Feb, 2024 (E)Nitrogen and Its Compounds
  24. 24Give below are two statements: Statement-I : Noble gases have very high boiling points. Statement-II: Noble gases are monoatomic gases. They31 Jan, 2024 (M)Noble Gases
  25. 25Choose the correct statements from the following A. All group 16 elements form oxides of general formula E O 2 and E O 3 where E = S , S e ,31 Jan, 2024 (E)Oxygen and Its Compounds
  26. 26Choose the correct statements about the hydrides of group 15 elements. A. The stability of the hydrides decreases in the order NH 3 PH 3 AsH30 Jan, 2024 (E)Nitrogen and Its Compounds
  27. 27Anomalous behaviour of oxygen is due to its29 Jan, 2024 (E)Oxygen and Its Compounds
  28. 28Element not showing variable oxidation state is :27 Jan, 2024 (M)Halogens and Its Compounds
  29. 29From the given list, the number of compounds with + 4 oxidation state of Sulphur SO 3 , H 2 SO 3 , SOCl 2 , SF 4 , BaSO 4 , H 2 S 2 O 727 Jan, 2024 (M)Sulphur and Its Compounds
  30. 30Given below are two statements: Statement (I) : Oxygen being the first member of group 16 exhibits only – 2 oxidation state. Statement (II) 27 Jan, 2024 (E)Oxygen and Its Compounds
  31. 31The number of P - O - P bonds in H 4 P 2 O 7 , HPO 3 3 , and P 4 O 10 are respectively15 Apr, 2023 (M)Phosphorus and Its Compounds
  32. 32The incorrect statement from the following for borazine is:13 Apr, 2023 (M)Nitrogen and Its Compounds
  33. 33The correct group of halide ions which can be oxidised by oxygen in acidic medium is13 Apr, 2023 (E)Oxygen and Its Compounds
  34. 34The incorrect statement regarding the reaction given below is12 Apr, 2023 (M)Nitrogen and Its Compounds
  35. 35Given below are two statements : Statement-I : Methane and steam passed over a heated Ni catalyst produces hydrogen gas. Statement-II : Sodi11 Apr, 2023 (M)Nitrogen and Its Compounds
  36. 36Given below are two statements, one is labelled as Assertion A and the other is labelled as Reasom R . Assertion A : A solution of the produ11 Apr, 2023 (E)Halogens and Its Compounds
  37. 37One mole of P 4 reacts with 8 moles of SOCl 2 to give 4 moles of A , x mole of SO 2 and 2 moles of B . A , B and x respectively are11 Apr, 2023 (E)Phosphorus and Its Compounds
  38. 38The difference in the oxidation state of Xe between the oxidised product of Xe formed on complete hydrolysis of XeF 4 and XeF 4 is10 Apr, 2023 (E)Noble Gases
  39. 39XeF 4 reacts with SbF 5 to form XeF m n + SbF y 2 - m + n + y + z = ? .08 Apr, 2023 (M)Noble Gases
  40. 40The ratio of sigma and bonds present in pyrophosphoric acid is08 Apr, 2023 (E)Phosphorus and Its Compounds
  41. 41The difference between electron gain enthalpies will be maximum between :06 Apr, 2023 (M)Noble Gases
  42. 42Match List I with List II List I Oxide List II Type of bond A N 2 O 4 I 1 N = O bond B NO 2 II 1 N O N bond C N 2 O 5 III 1 N N bond D N 2 O06 Apr, 2023 (M)Nitrogen and Its Compounds
  43. 43Match List-I with . List-I Name of reaction List-II Reagent used A Hell-Volhard Zelinsky reaction I NaOH + I 2 B Iodoform reaction II ( i ) 06 Apr, 2023 (M)Halogens and Its Compounds
  44. 44Given below are two statements: Statement I: Chlorine can easily combine with oxygen to from oxides: and the product has a tendency to explo01 Feb, 2023 (M)Halogens and Its Compounds
  45. 45Sum of oxidation states of bromine in bromic acid and perbromic acid is01 Feb, 2023 (M)Halogens and Its Compounds
  46. 46Identify X , Y and Z in the following reaction. (Equation not balanced) Cl O + NO 2 X H 2 O Y + Z31 Jan, 2023 (M)Halogens and Its Compounds
  47. 47When Cu 2 + ion is treated with KI , a white precipitate, X appears in solution. The solution is titrated with sodium thiosulphate, the comp31 Jan, 2023 (M)Sulphur and Its Compounds
  48. 48The oxidation sate of phosphorus in hypophosphoric acid is31 Jan, 2023 (M)Phosphorus and Its Compounds
  49. 49Formulae for Nessler s reagent is:30 Jan, 2023 (E)Nitrogen and Its Compounds
  50. 50A obtained by Ostwald s method involving air oxidation of NH 3 , upon further air oxidation produces B . B on hydration forms an oxoacid of 29 Jan, 2023 (M)Nitrogen and Its Compounds

Frequently Asked Questions

1.How many questions are available for p Block Elements (Group 15, 16, 17 & 18)?

This chapter includes 192 questions compiled from JEE Main papers spanning 2002 to 2026.

2.Are these questions only from JEE Main, or from other exams too?

These are JEE Main questions specifically for the p Block Elements (Group 15, 16, 17 & 18) chapter. Questions from other exams like NTA Abhyas (JEE Main) or JEE Advanced are organised separately under their respective exam sections.

3.Is p Block Elements (Group 15, 16, 17 & 18) an important chapter for JEE Main Chemistry?

p Block Elements (Group 15, 16, 17 & 18) has appeared in 24 of the 25 years of JEE Main papers covered here, with 192 questions across 134 papers - about one per paper it appears in.

4.What is the difficulty level of p Block Elements (Group 15, 16, 17 & 18) questions in JEE Main?

Of the 192 questions analysed for this chapter, 32% are easy, 55% moderate and 13% tough. 2022 had the most, with 30 questions.

5.Which topics in p Block Elements (Group 15, 16, 17 & 18) should I focus on?

These topics have carried the most weightage in p Block Elements (Group 15, 16, 17 & 18):

  • Nitrogen and Its Compounds - 55 questions (29%)
  • Halogens and Its Compounds - 45 questions (23%)
  • Phosphorus and Its Compounds - 33 questions (17%)
  • Halogens and Its Compounds has produced the most tough questions (6).
6.Is p Block Elements (Group 15, 16, 17 & 18)'s weightage in JEE Main going up or down?

Across all 134 papers analysed, p Block Elements (Group 15, 16, 17 & 18) has averaged about 1.4 questions per paper. In the last three years (2024–2026), that average has fallen, at about 0.5 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.